Cement sampling device for building supervision
By designing a cement sampling device that includes a sampling cylinder, a sliding cylinder, a push rod, and a blocking component, the problem of cement filling an unsealed area and blocking the connecting rod was solved, achieving efficient cement sampling and adaptability to various applications.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 田士勇
- Filing Date
- 2025-01-15
- Publication Date
- 2026-05-26
AI Technical Summary
The existing cement sampling device is not in a sealed environment when the bagged cement is inserted, which causes the cement to fill the unsealed area, block the connecting rod, and affect the sampling efficiency.
A sampling device was designed, comprising a sampling cylinder, a sliding cylinder, a push rod, a sleeve, and a blocking component. The cement bag is inserted through a conical surface, and the blocking component slides out of the inner wall of the sampling cylinder to prevent cement from entering the through hole and thus prevent obstruction. The length of the device can be adjusted by an adjustment component to adapt to sampling at different depths.
It improves sampling efficiency, reduces cement obstruction of the device, enhances the device's practicality and versatility, and facilitates sampling operations at different depths.
Smart Images
Figure CN224286433U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cement sampling, and in particular to a cement sampling device for building supervision. Background Technology
[0002] In the field of construction engineering, cement is a key building material, and its quality plays a decisive role in the structural strength, durability and safety of the entire project. One of the important responsibilities of construction supervision is to strictly control the quality of cement, and cement sampling is the first step in quality testing.
[0003] A search revealed Chinese Patent Publication No. CN222049676U, which discloses a cement sampling device for construction supervision. This utility model includes a sampling assembly. When sampling bagged cement, the threaded rod is rotated counterclockwise, causing the nut cylinder to move upwards along the outer wall of the threaded rod. The nut cylinder pulls the connecting rod and the slider, which in turn drives the rotating rod, sampling half-cap, and half-cone to close. The two half-cones close into a cone shape, facilitating insertion into the cement bag with minimal damage. After the sampling half-cap enters the cement bag, the threaded rod is rotated clockwise, causing the nut cylinder to move downwards along the outer wall of the threaded rod. The nut cylinder pushes the connecting rod and the slider, which in turn causes the sampling half-cap to separate, allowing the cement to flow between the two sampling half-caps. The threaded rod is then rotated counterclockwise again, causing the two sampling half-caps to close again and grasp the cement sample. Pulling the cylinder out completes the cement sampling process, eliminating the need to use a shovel to break the cement bag and minimizing damage.
[0004] While the aforementioned technology enables cement sampling without the need to break the cement bag with a shovel, minimizing damage to the cement bag, the insertion of the device into the bagged cement results in cement filling the unsealed area and obstructing the connecting rod. This prevents the sampling cap from closing completely, affecting sampling efficiency. Therefore, a cement sampling device for construction supervision is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above deficiencies, this utility model provides a cement sampling device for building supervision, which aims to improve the problem in the prior art that "because the insertion part of the device is not in a sealed environment, cement will fill the unsealed area, blocking the connecting rod of the device and affecting the sampling effect".
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a cement sampling device for building supervision, comprising a sampling cylinder, a slide cylinder slidably connected to the rear side of the sampling cylinder, a sampling mechanism provided on the inner wall of the slide cylinder, the sampling mechanism comprising a sampling component and a material sampling component, the sampling component comprising a push rod, the push rod slidably connected to the inner wall of the slide cylinder, a sleeve provided at the front of the push rod, the push rod and the slide cylinder being elastically connected by a return spring, a blocking member fixedly connected to the front side of the sleeve, the blocking member slidably connected to the front inner wall of the sampling cylinder, a through hole opened at the front of the sampling cylinder, and a material storage bin provided on the rear side of the sampling cylinder near the through hole.
[0007] As a further description of the above technical solution:
[0008] The material handling assembly includes a material handling plate, which is rotatably connected to the outside of the material handling cylinder. A limiting member is slidably connected to the inner rear wall of the material handling plate. The rear side of the limiting member is inserted into the inner wall of the material handling cylinder. The front part of the limiting member is elastically connected to the material handling plate through a compression spring.
[0009] As a further description of the above technical solution:
[0010] The front side of the material receiving cylinder is set as a conical surface.
[0011] As a further description of the above technical solution:
[0012] The front side of the blocking component is configured as an inclined surface.
[0013] As a further description of the above technical solution:
[0014] The front side of the blocking component is flush with the front surface of the material receiving cylinder.
[0015] As a further description of the above technical solution:
[0016] The through holes are provided in multiple sets, and the multiple sets of through holes are evenly distributed with the center point of the material receiving cylinder as the center.
[0017] As a further description of the above technical solution:
[0018] The inner wall of the slide cylinder is provided with an adjustment assembly, which includes a threaded rod. The threaded rod is rotatably connected to the inner wall of the push rod, and the outer front part of the threaded rod is threaded to the inner wall of the sleeve. A connecting plate is fixedly connected to the rear side of the threaded rod.
[0019] As a further description of the above technical solution:
[0020] The outer side of the sleeve slides against the inner wall of the slide.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, by inserting the conical surface at the front of the sampling cylinder into the cement bag, and pressing the push rod during the insertion process, the blocking component slides out from the inner wall of the sampling cylinder, and the cement is pushed into the inner wall of the sampling cylinder through the through hole, preventing the cement from entering the device and obstructing the components, thereby improving the sampling efficiency of the device.
[0023] 2. In this utility model, by using the adjustment component and the sampling mechanism together, when it is necessary to sample the inside of the cement, the connecting plate is rotated to drive the threaded rod to rotate, thereby moving the slide and sleeve through the thread to change the length of the device, so as to facilitate sampling of cement at different depths, thus improving the practicality of the device and the diversity of sampling. Attached Figure Description
[0024] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;
[0025] Figure 2 This is a schematic diagram of the unfolded three-dimensional structure of the blocking component in this utility model;
[0026] Figure 3 This is a partial cross-sectional view of the right-side three-dimensional structure of the overall device in this utility model;
[0027] Figure 4 This is a three-dimensional structural diagram of the blocking component and the threaded rod in this utility model;
[0028] Figure 5 This utility model Figure 3 A magnified three-dimensional structural diagram at point A in the middle.
[0029] Legend:
[0030] 1. Feeding cylinder; 2. Slide cylinder; 31. Push rod; 32. Sleeve; 33. Return spring 1; 34. Blocking component; 35. Through hole; 41. Feeding plate; 42. Limiting component; 43. Compression spring 1; 51. Threaded rod; 52. Connecting plate. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] Reference Figure 1 - Figure 3This utility model provides an embodiment of a cement sampling device for building supervision, comprising a sampling cylinder 1. The front side of the sampling cylinder 1 is set with a conical surface, which can quickly puncture the cement bag and insert it for sampling, reducing damage. A slide cylinder 2 is slidably connected to the rear side of the sampling cylinder 1 to extend the overall length of the device, thereby increasing the sampling diversity and practicality of the device. A sampling mechanism is provided on the inner wall of the slide cylinder 2. The sampling mechanism includes a sampling component and a material sampling component. The sampling component includes a push rod 31 for pushing the sleeve 32 to move. The push rod 31 is slidably connected to the inner wall of the slide cylinder 2. A sleeve 32 is provided at the front of the push rod 31 for connecting the push rod 31 and the blocking member 34, which can push the blocking member 34 out of the inner wall of the sampling cylinder 1. The outer side of the sleeve 32 slides on the inner wall of the slide cylinder 2. The push rod 31 and the slide cylinder 2 are elastically connected by a return spring 33, one end of which is fixedly connected to the outer side of the push rod 31 and the other end is fixedly connected to the inner wall of the slide cylinder 2, providing the push rod 31 with a return capability.
[0033] Reference Figure 2 - Figure 4 A blocking member 34 is fixedly connected to the front side of the sleeve 32. The blocking member 34 slides out of the inner wall of the picking cylinder 1 and blocks and guides the cement during the movement of the picking cylinder 1, so that the cement enters the storage bin through multiple sets of through holes 35 to complete the sampling. The front side of the blocking member 34 is set as an inclined surface and is flush with the front surface of the picking cylinder 1. This can reduce resistance when moving and passing through the cement bag. The blocking member 34 is slidably connected to the inner wall of the front part of the picking cylinder 1. The front part of the picking cylinder 1 is provided with through holes 35. Multiple sets of through holes 35 are evenly distributed around the center point of the picking cylinder 1, so that the cement can enter the storage bin more quickly through the through holes 35. The rear side of the picking cylinder 1 near the through holes 35 is set as the storage bin for storing the sampled cement.
[0034] Reference Figure 1 , Figure 3 and Figure 5The material handling assembly includes a material handling plate 41, which is completely fitted to the outside of the material handling cylinder 1. When it is necessary to remove cement powder from the storage hopper, the limiting member 42 can be pulled to quickly release the limiting on the material handling plate 41 and remove the cement sample. Two sets are provided, one on the upper side and one on the lower side of the material handling cylinder 1, to make the removal of cement samples more convenient and faster. The material handling plate 41 is rotatably connected to the outside of the material handling cylinder 1, and the limiting member 42 is slidably connected to the inner rear wall of the material handling plate 41. Under the elasticity of the compression spring 43 Under the action of force, it is stably inserted into the inner wall of the material receiving cylinder 1 to limit the material receiving plate 41. At the same time, a baffle is provided on the upper front side to prevent cement from entering the moving space of the compression spring 43. An anti-slip strip is provided on the upper side. The rear side of the limiting member 42 is inserted into the inner wall of the material receiving cylinder 1. The front part of the limiting member 42 is elastically connected to the material receiving plate 41 through the compression spring 43. One side is fixedly connected to the outside of the limiting member 42, and the other side is fixedly connected to the inner wall of the material receiving cylinder 1 to provide elastic force for the limiting member 42.
[0035] Reference Figure 1 , Figure 3 and Figure 4 The inner wall of the slide cylinder 2 is equipped with an adjustment component, which includes a threaded rod 51. By rotating the connecting plate 52, the threaded rod 51 is driven to rotate, so that the threaded rod 51 rotates on the inner wall of the sleeve 32 through the thread, thereby increasing the distance between the sleeve 32 and the push rod 31, allowing the slide cylinder 2 to slide on the inner wall of the material collection cylinder 1, and the length of the device can be quickly adjusted to adapt to different cement sampling positions. The threaded rod 51 is rotatably connected to the inner wall of the push rod 31, and the outer front part of the threaded rod 51 is threadedly connected to the inner wall of the sleeve 32. The connecting plate 52 is fixedly connected to the rear side of the threaded rod 51, which makes it convenient for the operator to rotate the threaded rod 51.
[0036] Working principle: During use, according to the depth requirements of the cement sampling location, the operator drives the threaded rod 51 to rotate by rotating the connecting plate 52. Since the outer front thread of the threaded rod 51 is connected to the inner wall of the sleeve 32, and the push rod 31 and the slide cylinder 2 are elastically connected by the return spring 33, as the threaded rod 51 rotates, the distance between the sleeve 32 and the push rod 31 will change, thereby pushing or pulling the slide cylinder 2 to slide on the inner wall of the sampling cylinder 1, realizing the adjustment of the overall length of the device to adapt to cement sampling scenarios at different depths.
[0037] After the device length is adjusted, the operator holds the device, faces the cement bag with the conical surface on the front of the material taking cylinder 1 and inserts it forcefully. When the material taking cylinder 1 is inserted to a suitable depth, the operator pushes the push rod 31 forward through the connecting plate 52. The push rod 31 drives the sleeve 32 and the blocking part 34 fixed on the front of the sleeve 32 to move forward together. The blocking part 34 gradually slides out of the inner wall of the material taking cylinder 1.
[0038] During the forward movement of the sampling cylinder 1, the blocking component 34 will block and guide the cement flow, allowing the cement to enter the storage bin near the rear of the sampling cylinder 1 through the multiple sets of through holes 35 at the front of the sampling cylinder 1 under external pressure, thus completing the cement sampling operation. This prevents cement from entering the device and obstructing the components, thereby improving the sampling efficiency of the device. When the push rod 31 is released, under the elastic force of the return spring 33, the push rod 31 drives the sleeve 32 and the blocking component 34 to move backward back to the initial position.
[0039] When it is necessary to remove the cement sample from the storage silo, the operator pulls the limiting piece 42 on the inner wall of the rear of the picking plate 41, so that it overcomes the elastic force of the compression spring 43 and disengages from the inner wall of the picking cylinder 1. At this time, since the limiting piece is released, the picking plate 41 can rotate and open around its rotational connection point with the picking cylinder 1, which can conveniently and quickly remove the cement sample from the storage silo for subsequent testing and analysis.
[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A device for sampling cement for building supervision, comprising a sampling cylinder (1), characterized in that: The rear side of the material taking cylinder (1) is slidably connected to the slide cylinder (2). The inner wall of the slide cylinder (2) is provided with a sampling mechanism. The sampling mechanism includes a sampling component and a material taking component. The sampling component includes a push rod (31). The push rod (31) is slidably connected to the inner wall of the slide cylinder (2). A sleeve (32) is provided at the front of the push rod (31). The push rod (31) and the slide cylinder (2) are elastically connected by a return spring (33). A blocking member (34) is fixedly connected to the front side of the sleeve (32). The blocking member (34) is slidably connected to the inner wall of the front part of the material taking cylinder (1). A through hole (35) is opened at the front part of the material taking cylinder (1). The rear side of the material taking cylinder (1) near the through hole (35) is set as a storage bin.
2. The cement sampling device for construction supervision according to claim 1, characterized in that: The material handling assembly includes a material handling plate (41), which is rotatably connected to the outside of the material handling cylinder (1). A limiting member (42) is slidably connected to the inner wall of the rear part of the material handling plate (41). The rear side of the limiting member (42) is inserted into the inner wall of the material handling cylinder (1). The front part of the limiting member (42) is elastically connected to the material handling plate (41) through a compression spring (43).
3. The cement sampling device for construction supervision according to claim 1, characterized in that: The front side of the material receiving cylinder (1) is set as a conical surface.
4. The cement sampling device for construction supervision according to claim 1, characterized in that: The front side of the blocking member (34) is set as an inclined surface.
5. The cement sampling device for construction supervision according to claim 1, characterized in that: The front side of the blocking member (34) is flush with the front surface of the material taking cylinder (1).
6. The cement sampling device for construction supervision according to claim 1, characterized in that: The through holes (35) are provided in multiple sets, and the multiple sets of through holes (35) are evenly distributed with the center point of the material taking cylinder (1) as the center.
7. The cement sampling device for construction supervisors according to claim 1, characterized in that: The inner wall of the slide (2) is provided with an adjustment component, which includes a threaded rod (51). The threaded rod (51) is rotatably connected to the inner wall of the push rod (31). The outer front part of the threaded rod (51) is threadedly connected to the inner wall of the sleeve (32). A connecting plate (52) is fixedly connected to the rear side of the threaded rod (51).
8. The cement sampling device for construction supervisors according to claim 1, characterized in that: The outer side of the sleeve (32) slides on the inner wall of the slide (2).